CC

Cheng-hua Chuang

PI Pioneer Industries: 6 patents #2 of 7Top 30%
BC Behavior Tech Computer: 2 patents #20 of 96Top 25%
Overall (All Time): #520,661 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
7498536 Key structure of a computer keyboard 2009-03-03
7214897 Illuminated keyboard with illuminated patterns displayed on top surface of keyboard 2007-05-08
D504700 Pen cap 2005-05-03
D446245 Pen cap 2001-08-07
D436997 Pen cap 2001-01-30
6149330 Building blocks type writing instrument 2000-11-21
D422308 Building block type writing implement 2000-04-04
D419187 Building block-type writing implement 2000-01-18
D412532 Non-sharpening pencil with cap 1999-08-03
D384103 Toy bear writing implement 1997-09-23